9-12-4R 12" Combination Set with Square, Center and Non-Reversible Protractor Head and Blade. Blade Finish :Steel. Blade Length (in) :12". Head Material : Cast Iron. Head Types :Square, Center, Protractor.
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No previous owners engravings.
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The Starrett No 490 Protractor Head 6.5 Inch Rule is a vintage USA machinist tool made of steel with a 6.5-inch base length. This protractor square head is designed for precise measurements and inspection in metalworking, making it a valuable tool for professionals in the CNC, metalworking, and manufacturing industries. With its high-quality craftsmanship and specific graduation style in inches, this tool is a reliable and durable option for accurate measuring and squaring tasks.
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New-Open Box. The item you receive will be either the item pictured or comparable (or better) in appearance.
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Here are 10- new, never used Starrett 4 grad combination square grooved rule. Has 64ths & 32nds and 16ths & 8ths graduations. This has the standard steel finish. All still very useable. All 10-are shown to show both sides.
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STARRETT COMBINATION SQUARE 5pcs Head,Protractor#12w Center Finder,18" Rule 16 grade & Scribe WORKS GREAT Good condition
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Here is a Starrett protractor head. This is marked STARRETT NO 490. The protractor head is for 12, 18, and 24" rules (NOT INCLUDED). The head measures 7" by 3/4" wide and 3 1/4" tall. Get this quality tool!.
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